The inline data length for TSO ethernet segment should be
calculated from the TSO header instead of the inline size
configured by txq_inline_min devarg or reported by the NIC.
It is imposed by the nature of TSO offload - inline header
is being duplicated to every output TCP packet.
Fixes: cacb44a09962 ("net/mlx5: add no-inline Tx flag")
Cc: sta...@dpdk.org
Signed-off-by: Viacheslav Ovsiienko <viachesl...@nvidia.com>
---
drivers/net/mlx5/mlx5_tx.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_tx.h b/drivers/net/mlx5/mlx5_tx.h
index 7d3ff8407c..e8b1c0f108 100644
--- a/drivers/net/mlx5/mlx5_tx.h
+++ b/drivers/net/mlx5/mlx5_tx.h
@@ -1338,7 +1338,8 @@ mlx5_tx_eseg_mdat(struct mlx5_txq_data *__rte_restrict
txq,
* Copying may be interrupted inside the routine
* if run into no inline hint flag.
*/
- copy = tlen >= txq->inlen_mode ? 0 : (txq->inlen_mode - tlen);
+ copy = tso ? inlen : txq->inlen_mode;
+ copy = tlen >= copy ? 0 : (copy - tlen);
copy = mlx5_tx_mseg_memcpy(pdst, loc, part, copy, olx);
tlen += copy;
if (likely(inlen <= tlen) || copy < part) {
--
2.18.1
